Replacing a shower door is one of the most effective ways to refresh a tired bathroom without the expense of a full renovation. Beyond aesthetics, a well-fitted...
Whether you are upgrading to a modern frameless design or replacing a leaking bifold unit, the installation requires precision. Even a few millimetres of misalignment can cause leaks, stiff operation, or even shattered glass panels.
What Does the Work Involve?
- Removal: Carefully dismantling the old door, frame, and seals, followed by safe disposal of the toughened glass.
- Inspection: Checking the shower tray and walls for levelness, and inspecting the substrate for signs of rot or water ingress.
- Preparation: Cleaning away old silicone and drilling new pilot holes into tiles or wall panels using diamond-tipped bits.
- Fitting: Installing the new wall profiles and frame (sliding, hinged, or bifold) and securing them to the wall.
- Hanging: Lifting the glass panels into place and adjusting rollers or hinges for a perfectly smooth movement.
- Sealing: Applying high-quality sanitary-grade silicone to the exterior joins to ensure a watertight finish.
Typical Costs
| Item | Low £ | High £ | Notes |
|---|---|---|---|
| Labour (Installation) | £120 | £250 | Based on a 2-4 hour job. |
| Standard Door/Enclosure | £150 | £450 | Off-the-shelf framed or semi-frameless. |
| Premium/Bespoke Glass | £500 | £1,500+ | 10mm frameless or custom sizes. |
| Disposal Fee | £30 | £60 | Professional removal of old glass. |
| Total Project Cost | £300 | £1,200+ | Includes VAT and materials. |
Costs are primarily driven by the type of glass selected and the complexity of the fixings. Frameless doors often require more expensive, heavy-duty hinges and perfectly flat walls, which may increase labour time.
How Long Does It Take?
- Standard "Like-for-Like" Swap: 2–3 hours.
- New Frame Installation: 3–5 hours, including wall adjustments.
- Bespoke Frameless Glass: 4–6 hours, often requiring two people for heavy lifting.
- Sealant Curing: 24 hours (essential before the shower can be used).
DIY or Professional?
While a confident DIYer can fit a basic shower door, hiring a professional is highly recommended. Shower glass is heavy and tempered; if a corner is knocked during installation, the entire panel can spontaneously shatter.
Professional installers provide a guarantee on the "watertightness" of the job, saving you from the risk of damp and mould caused by poor sealing.
Choosing the Right Tradesperson
- Look for bathroom fitters or specialist glazing installers with positive local reviews.
- Check Insurance: Ensure they have Public Liability insurance to cover accidental glass breakage.
- Ask for Portfolios: Request photos of previous frameless or bespoke installations if you have a high-end design.
- Questions to ask:
- Do you include the disposal of the old glass and frame in your quote?
- Which brand of silicone do you use (anti-mould is preferred)?
- Will you need to drill into my tiles, and do you have the specialized bits to prevent cracking?
UK Regulations
- Safety Glass: All shower doors must be made of toughened safety glass, complying with BS EN 12150 or BS 6206.
- Building Regs (Part P): If the installer needs to move any electrical points (like a shower pull-cord) to accommodate a wider door, they must be Part P qualified.
- Waste Disposal: If the tradesperson takes the old door away, they should ideally hold a lower-tier waste carrier licence.
Common Problems
- Leaking at the Base: Usually caused by applying silicone to the inside of the frame rather than just the outside, which traps water.
- Door Dropping: Over time, heavy glass panels can sag if the hinges weren't anchored into a solid wall or stud.
- Cracked Tiles: Using the wrong drill bit or too much pressure when fixing the wall profile can easily crack ceramic or porcelain tiles.
- Magnetic Seal Gaps: If the walls aren't perfectly plumb, the magnetic seals won't meet, leading to significant splashing outside the tray.
Frequently Asked Questions
Can I replace just the glass and keep the old frame?
In most cases, no. Manufacturers design frames and glass to work as a single unit; finding a replacement panel that fits an old frame perfectly is difficult and often more expensive than a new kit.
How soon can I use the shower after the door is fitted?
You must wait at least 24 hours for the silicone sealant to fully cure. Using the shower too early will cause the seal to fail, leading to leaks.
Why is my new shower door leaking from the bottom?
This is often due to the bottom seal being fitted incorrectly or the door not being level. It can also happen if the installer sealed the inside of the frame, preventing water from draining back into the tray.
What is the best glass thickness for a shower door?
Standard doors are usually 6mm. For a premium, sturdy feel, 8mm or 10mm is preferred, though these require much stronger wall fixings due to the weight.
Do I need to retile before fitting a new door?
Not necessarily. If the new door frame is wider than the old one, it will cover existing holes. If it is narrower, you may have visible drill holes that need to be filled with waterproof grout or silicone.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
